sex chromosome


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sex chromosome

either of the chromosomes determining the sex of animals

sex chromosome

[′seks ‚krō·mə‚sōm]
(genetics)
Either member of a pair of chromosomes responsible for sex determination of an organism.
References in periodicals archive ?
Sex chromosome types abundant in one year were also abundant in the other years.
The most extreme type of sex determination system is found where highly specialized sex chromosomes are found; this type of system usually promotes dioecy in plants [19].
Shan et al., "Conserved synteny between the chicken Z sex chromosome and human chromosome 9 includes the male regulatory gene DMRT1: a comparative (re)view on avian sex determination," Cytogenetics and Cell Genetics, vol.
Major Finding: Of all cases with common autosomal or sex chromosome aneuploidy identified by karyotyping, 100% were confirmed by microarray testing.
The prevalence of sex chromosome anomalies showed a significant difference between the cases with azoospermia and oligospermia (85 vs.
In addition to these conditions, there are also individuals with a female appearance who have a DSD with male sex chromosomes, the so-called XY females.
destructor from the USA populations was karyotyped (Stuart and Hatchett 1988) and the authors found that female somatic cells have two pairs of autosomes and two pairs of sex chromosomes (2n = 8), while male somatic cells have two pairs of autosomes and two monosomic sex chromosomes (2n - 2 = 6).
Sexually reproducing organisms have two major types of chromosomes; that is, sex chromosomes and autosomes.
'The realisation that surveys of sex chromosome hybrid zones can answer questions relating to the early evolution of sex chromosomes is exciting because such hybrid zones are already known and waiting to be analyzed.'
male pseudo-hermaphrodite, female pseudo-hermaphrodite and true hermaphrodite.2 After consensus in 2006, new nomenclature was introduced in which the term Intersex was replaced by Disorder of Sex Development and its main categories were classified as 46, XX DSD; 46, XY DSD; and Sex chromosome DSD.1,2
Females typically have two of the same kind of sex chromosome (XX) and are called the homogametic sex.
megistus and agmatoploidy in the X sex chromosome ofP lutzi (Alevi and Azeredo-Oliveira, 2018).